<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title></title>
</head>
<body>
  <h1>用户登录</h1>
  <form method="post" action="/app_01/login/">
      {% csrf_token %}
    <input type="text" name="user" placeholder="用户名">
    <input type="password" name="pwd" placeholder="密码">
    <input type="submit" value="提交"/>
    <a style="color: red;">{{ error_msg }}</a>
  </form>
</body>
</html>